DG450-2 (Single-phase)

  • Overview
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  • Four-stroke-cycle gas engine combines consistent performance and excellent fuel economy with minimum weight


  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • High Efficiency

EMCP Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

Design Criteria

  • The generator set facilitates compliance with NFPA 110 and meets ISO 8528-5 requirements for transient response
  • Cooling system designed to operate in 50˚C/122˚F ambient temperatures with an air flow restriction of 0.5 in. water

UL 2200 / CSA
 - Optional

  • UL 2200 Listed packages
  • CSA Certified
  • Certain restrictions may apply
  • Consult with your Cat® Dealer

Worldwide Product Support

  • Cat dealers have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Generator Set Specifications
Frequency 60 Hz
Natural Gas Rating 450 ekW
Emissions/Fuel Strategy U.S. EPA Certified for Non-Emergency Application
Voltage 120/208, 120/240, 277/480, 346/600 VAC
Engine Specifications
Engine Model G21.9L V12, 4-Cycle, Spark -Ignited
Generator Set Specifications
Displacement 21.9 l (1336.42 inu00b3)
Engine Specifications
Fuel System Carburetor, Down Draft
Generator Set Specifications
Fuel Type Natural Gas
Speed 1800 rpm
Engine Specifications
Aspiration Turbocharged - Aftercooled
Governor Type Electronic
Bore 128 mm (5.03 in)
Stroke 142 mm (5.6 in)
Generator Set Dimensions
Length 3923 mm (154.4 in)
Width 1803 mm (71 in)
Height 1702 mm (67 in)
Weight 3753 kg (8274 lb)
Engine Specifications
Compression Ratio 10.0:1

Standard Equipment

  • Cooling
    • Closed coolant recovery system
    • 50/50 Ethylene glycol antifreeze
    • Factory-installed radiator
  • Fuel
    • Fuel pressure test po
    • Low fuel pressure switch
    • Primary and secondary fuel shut-off
  • Generator
    • Class H insulation material
    • Permanent magnet excitation
    • Full load capacity alternator
  • Controls
    • EMCP 4.2 Series generator set controller
  • Mounting
    • Vibration isolaton (puck type)
  • Electric Starting and/or Prelube
    • Engine electrical system
    • Battery cables
    • Solenoid activated starter motor
  • Electric Power – Package Serial Number Prefix
    • Battery charging alternator

Optional Equipment

  • Generator
    • Thermal magnetic or electronic trip MCCBs
    • Anti-condensation heater
    • Shunt trip and auxiliary contact breaker

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